CVE-2022-40617
Published: 3 October 2022
strongSwan before 5.9.8 allows remote attackers to cause a denial of service in the revocation plugin by sending a crafted end-entity (and intermediate CA) certificate that contains a CRL/OCSP URL that points to a server (under the attacker's control) that doesn't properly respond but (for example) just does nothing after the initial TCP handshake, or sends an excessive amount of application data.
Priority
Status
Package | Release | Status |
---|---|---|
strongswan Launchpad, Ubuntu, Debian |
kinetic |
Released
(5.9.6-1ubuntu2)
|
upstream |
Needs triage
|
|
bionic |
Released
(5.6.2-1ubuntu2.9)
|
|
focal |
Released
(5.8.2-1ubuntu3.5)
|
|
jammy |
Released
(5.9.5-2ubuntu2.1)
|
|
trusty |
Released
(5.1.2-0ubuntu2.11+esm3)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
xenial |
Released
(5.3.5-1ubuntu3.8+esm3)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
lunar |
Released
(5.9.6-1ubuntu2)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |